15/100 = 15%
A value like 15% shows up in everyday life in places such as sales discounts, test scores, tips, and survey results. For example, a store might take 15% off a jacket, or 15 out of every 100 people might choose the same answer.
To picture 15% quickly, imagine 15 shaded squares in a grid of 100 squares. It is a little less than one-fifth, since 20% would equal one-fifth, so you can estimate it as a noticeable but not huge portion.
A common mistake is thinking 15% means 15 points or 15 items no matter what the total is. The fraction 15/100 describes a share of a whole, so the actual amount depends on what the percentage is being applied to.
